linux多线程查看工具(pstree、ps、pstack)

小鱼儿 2022-08-07 14:46 102阅读 0赞

**linux多线程查看工具(pstree、ps、pstack)**

1. pstree

pstree以树结构显示进程  
$ pstree -p work | grep ad  
sshd(22669)---bash(22670)---ad\_preprocess(4551)-+\-\{ad\_preprocess\}(4552)  
                                                |-\{ad\_preprocess\}(4553)  
                                                |-\{ad\_preprocess\}(4554)  
                                                |-\{ad\_preprocess\}(4555)  
                                                |-\{ad\_preprocess\}(4556)  
                                                \`-\{ad\_preprocess\}(4557)

work为工作用户，-p为显示进程识别码，ad\_preprocess共启动了6个子线程，加上主线程共7个线程

**2. ps -Lf**

$ ps -Lf 4551  
UID        PID  PPID   LWP  C NLWP STIME TTY      STAT   TIME CMD  
work      4551 22670  4551  2    7 16:30 pts/2    Sl+    0:02 ./ad\_preprocess  
work      4551 22670  4552  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess  
work      4551 22670  4553  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess  
work      4551 22670  4554  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess  
work      4551 22670  4555  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess  
work      4551 22670  4556  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess  
work      4551 22670  4557  0    7 16:30 pts/2    Sl+    0:00 ./ad\_preprocess

进程共启动了7个线程

3. pstack

pstack显示每个进程的栈跟踪

$ pstack 4551  
Thread 7 (Thread 1084229984 (LWP 4552)):  
\#0  0x000000302afc63dc in epoll\_wait () from /lib64/tls/libc.so.6  
\#1  0x00000000006f0730 in ub::EPollEx::poll ()  
\#2  0x00000000006f172a in ub::NetReactor::callback ()  
\#3  0x00000000006fbbbb in ub::UBTask::CALLBACK ()  
\#4  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#5  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#6  0x0000000000000000 in ?? ()  
Thread 6 (Thread 1094719840 (LWP 4553)):  
\#0  0x000000302afc63dc in epoll\_wait () from /lib64/tls/libc.so.6  
\#1  0x00000000006f0730 in ub::EPollEx::poll ()  
\#2  0x00000000006f172a in ub::NetReactor::callback ()  
\#3  0x00000000006fbbbb in ub::UBTask::CALLBACK ()  
\#4  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#5  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#6  0x0000000000000000 in ?? ()  
Thread 5 (Thread 1105209696 (LWP 4554)):  
\#0  0x000000302b80baa5 in \_\_nanosleep\_nocancel ()  
\#1  0x000000000079e758 in comcm::ms\_sleep ()  
\#2  0x00000000006c8581 in ub::UbClientManager::healthyCheck ()  
\#3  0x00000000006c8471 in ub::UbClientManager::start\_healthy\_check ()  
\#4  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#5  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#6  0x0000000000000000 in ?? ()  
Thread 4 (Thread 1115699552 (LWP 4555)):  
\#0  0x000000302b80baa5 in \_\_nanosleep\_nocancel ()  
\#1  0x0000000000482b0e in armor::armor\_check\_thread ()  
\#2  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#3  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#4  0x0000000000000000 in ?? ()  
Thread 3 (Thread 1126189408 (LWP 4556)):  
\#0  0x000000302af8f1a5 in \_\_nanosleep\_nocancel () from /lib64/tls/libc.so.6  
\#1  0x000000302af8f010 in sleep () from /lib64/tls/libc.so.6  
\#2  0x000000000044c972 in Business\_config\_manager::run ()  
\#3  0x0000000000457b83 in Thread::run\_thread ()  
\#4  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#5  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#6  0x0000000000000000 in ?? ()  
Thread 2 (Thread 1136679264 (LWP 4557)):  
\#0  0x000000302af8f1a5 in \_\_nanosleep\_nocancel () from /lib64/tls/libc.so.6  
\#1  0x000000302af8f010 in sleep () from /lib64/tls/libc.so.6  
\#2  0x00000000004524bb in Process\_thread::sleep\_period ()  
\#3  0x0000000000452641 in Process\_thread::run ()  
\#4  0x0000000000457b83 in Thread::run\_thread ()  
\#5  0x000000302b80610a in start\_thread () from /lib64/tls/libpthread.so.0  
\#6  0x000000302afc6003 in clone () from /lib64/tls/libc.so.6  
\#7  0x0000000000000000 in ?? ()  
Thread 1 (Thread 182894129792 (LWP 4551)):  
\#0  0x000000302af8f1a5 in \_\_nanosleep\_nocancel () from /lib64/tls/libc.so.6  
\#1  0x000000302af8f010 in sleep () from /lib64/tls/libc.so.6  
\#2  0x0000000000420d79 in Ad\_preprocess::run ()  
\#3  0x0000000000450ad0 in main ()